On Earth human sperm tend to know where to go when it comes to fertilizing an egg in utero. But that may not be the case in space. A new study suggests human sperm may struggle to navigate in ...

Having kids is a decision with a lot of gravity, literally. Scientists have found that sperm in space can’t find their direction during their pursuit to fertilize an egg. Such digressions could pose a ...

Jeffrey Richards, a payload research and science coordinator on the LASSO contract at NASA’s Kennedy Space Center in Florida, prepares an experiment for a test in an Airbus Random Positioning Machine ...

As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red planet would give more than enough time for someone to become pregnant and even ...

A new study suggests that female astronauts may face a hidden risk of developing blood clots during space missions, highlighting the need for more gender-specific research in space medicine.

The volunteers' blood samples were exposed to altered gravity conditions in parabolic flight. -- University of Barcelona Space travel has always tested the human body by the effects of the new ...

Add Yahoo as a preferred source to see more of our stories on Google. Sperm may be negatively affected by a lack of gravity, a new study shows. (Sperm and Embryo Biology Laboratory, Adelaide ...